#3 - High School Math
Lesson Title: Sum of the interior angles of a triangle
Level: 10th Grade (Geometry)
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Lesson Objective: Students will use Geometer's Sketchpad to construct triangles, and use the tools embedded in the software to measure their interior angles, and them sum them. They will then move the various parts of the triangle around, and attempt to draw a conclusion about the sum of such angles.
Technology: Computer lab with Geometer's Sketchpad
Which Stage of Teaching with Technology does this lesson illustrate?